CN103281049A - Wide band YIG electrically tunable filter - Google Patents
Wide band YIG electrically tunable filter Download PDFInfo
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- CN103281049A CN103281049A CN2013102082961A CN201310208296A CN103281049A CN 103281049 A CN103281049 A CN 103281049A CN 2013102082961 A CN2013102082961 A CN 2013102082961A CN 201310208296 A CN201310208296 A CN 201310208296A CN 103281049 A CN103281049 A CN 103281049A
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Abstract
The invention provides a wide band YIG electrically tunable filter. The wide band YIG electrically tunable filter is suitable for the technical field of electrically tunable filters, and comprises a shell, an upper magnetic electrode, a lower magnetic electrode and turning coils. The upper magnetic electrode and the lower magnetic electrode are fixed among the turning coils. The part, close to gaps, between the upper magnetic electrode and the lower magnetic electrode becomes thinner. The upper magnetic electrode and the lower magnetic electrode are formed through the combination of two materials. A magnetic circuit is formed by the shell, the upper magnetic electrode, the lower magnetic electrode and the turning coils. The frequency band of the wide band YIG electrically tunable filter is within the range of 3GHz-50GHz, the tuning linearity of the wide band YIG electrically tunable filter reaches 0.2 percent, and meanwhile the linearity of the wide band YIG electrically tunable filter is smaller than 100MHz.
Description
Technical field
The invention belongs to the electrically tunable filter technical field, relate in particular to a kind of broadband YIG electrically tunable filter.
Background technology
In the YIG of prior art electrically tunable filter, the magnetic structure of magnetically soft alloy or other material generally adopts 1J50, and profile as shown in Figure 1.45 degree oblique line filling parts are magnetically soft alloy, and the grid filling part is drive coil.Coil electricity makes and produces available magnetic field between the lower magnetic pole, and the YIG in magnetic field and the placement magnetic field or the resonance frequency of other materials have certain corresponding relation.
Adjusting scans the frequency of YIG electrically tunable filter passband or stopband by the size of coil current, and corresponding relation keeps good linearity and narrow flyback curve between tuned frequency and the electric current, i.e. high linearity, low hysteresis characteristic.The linearity within frequency tuning range 3GHz-26.5GHz, the linearity about 1 ‰, magnetic hysteresis 30MHz.Be subjected to the influence of material saturation induction density, be limited to 35GHz on its tuned frequency.Along with frequency is widened 3GHz-50GHz, the linearity worsens rapidly, greatly about 1% or bigger.If the whole ferrocobalt 1J22 that adopts of casing can improve the linearity, but need very strong driving power this moment, and magnetic hysteresis is very big, about the about 300MHz of magnetic hysteresis even higher, cause tester can't accurately follow the tracks of YIG electrically tunable filter centre frequency, cause test error big.Be not suitable for uses such as fine measuring instrument, existing YIG electrically tunable filter can't realize simultaneously in the 3GHz-50GHz broadband that high linearity, low hysteresis characteristic are tuning.
Therefore, there is defective in prior art, needs to improve.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of broadband YIG electrically tunable filter, be intended to solve the influence that existing electrically tunable filter is subjected to saturation induction density, be limited to 35GHz on its tuned frequency, material can't be realized the problem of the interior high linearity of the tuning frequency band range of 3GHz-50GHz and low hysteresis property requirement.
The present invention is achieved in that a kind of broadband YIG electrically tunable filter, wherein, comprises shell, goes up magnetic pole, lower magnetic pole and syntonizing coil; Described upward magnetic pole and lower magnetic pole are fixed between the described syntonizing coil, and the described part that goes up close air gap between magnetic pole and the lower magnetic pole attenuates, and last magnetic pole and lower magnetic pole adopt two kinds of combinations of materials to form; Described shell, last magnetic pole, lower magnetic pole and syntonizing coil constitute magnetic circuit together.
Described broadband YIG electrically tunable filter, wherein, the described taper portion that goes up magnetic pole and the close air gap of lower magnetic pole adopts the 1J22 material to make.
Described broadband YIG electrically tunable filter, wherein, described magnetic pole and the lower magnetic pole gone up adopts similar high saturated magnetic induction, material that coercive force is big to make near the taper portion of air gap.
Described broadband YIG electrically tunable filter, wherein, the described other parts that go up magnetic pole and lower magnetic pole adopt the 1J50 material to make.
Described broadband YIG electrically tunable filter, wherein, the described other parts that go up magnetic pole and lower magnetic pole adopt the permeability magnetic material that similar saturation induction density is lower, coercive force is little to make.
Described broadband YIG electrically tunable filter, wherein, described casing adopts 1J50 to make.
Described broadband YIG electrically tunable filter, wherein, described casing adopts the permeability magnetic material that similar saturation induction density is lower, coercive force is little to make.
Described broadband YIG electrically tunable filter, wherein, described upward magnetic pole and the length of lower magnetic pole in described magnetic circuit account for fraction.
Described broadband YIG electrically tunable filter, wherein, the length of described casing in described magnetic circuit accounts for the overwhelming majority.
Described broadband YIG electrically tunable filter, wherein, the linear characteristic of described magnetic circuit and the described linear properties of going up magnetic pole, lower magnetic pole approach; The magnetic hysteresis feature of described magnetic circuit and the material of described casing approach.
Broadband YIG electrically tunable filter of the present invention can realize simultaneously that high linearity, low hysteresis characteristic are tuning, by the variation of version and the choose reasonable of material, has realized that 3GHz-50GHz high linearity, low hysteresis characteristic are tuning.
Description of drawings
Fig. 1 is the YIG electrically tunable filter magnetic structure profile that prior art provides;
Fig. 2 is the broadband YIG electrically tunable filter magnetic structure profile that the embodiment of the invention provides.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
As shown in Figure 2, a kind of broadband YIG electrically tunable filter comprises shell 1, goes up lower magnetic pole 2 and syntonizing coil 3; Described upward magnetic pole and lower magnetic pole are fixed between the described syntonizing coil 3, and the described part that goes up close air gap 4 between magnetic pole and the lower magnetic pole attenuates, and last magnetic pole and lower magnetic pole adopt two kinds of combinations of materials to form; Described shell, last magnetic pole, lower magnetic pole and syntonizing coil 3 constitute magnetic circuit together.
Further, described broadband YIG electrically tunable filter, the permeability magnetic material that a kind of or similar saturation induction density is lower, coercive force is little in the magnetic structure employing magnetically soft alloy and fraction 1J22 (high saturated magnetic induction Tie Gufanhejin) or similar high saturated magnetic induction, the combination of materials that coercive force is big form, and profile as shown in Figure 2.What described magnetically soft alloy was commonly used has: 1J46,1J50,1J54,1J76,1J77,1J79,1J80,1J85,1J86,1J34,1J51,1J52,1J65,1J66,1J67,1J83,1J403.
The highest magnetic pole of saturation induction density 2 is adopted 1J22 or similar high saturated magnetic induction, material that coercive force is big, realized to produce enough big magnetic field intensity in the magnetic pole slit, the whole linearity and the performance of magnetic pole 2 approach, therefore its length in magnetic circuit is very little, and the deterioration that magnetic hysteresis is brought is limited.
Casing 1 part of magnetic conduction adopts 1J50 or similar saturation induction density is lower, coercive force is little permeability magnetic material on every side, the cross-sectional area of casing each several part is bigger, magnetic field intensity is lower, can not cause the linearity to worsen because of the saturation induction density near material, the length of casing 1 in magnetic circuit is occupied the overwhelming majority, therefore, the part properties of materials is approaching therewith for the hysteresis characteristic of magnetic circuit.
For whole magnetic circuit, its hysteresis characteristic and 1J50 or the permeability magnetic material that similar saturation induction density is lower, coercive force is little approach, and linear characteristic and 1J22 or similar high saturated magnetic induction, the material linear properties big than coercive force approach.Realize the broad frequency range high linearity, low hysteresis characteristic.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a broadband YIG electrically tunable filter is characterized in that, comprises shell, goes up magnetic pole, lower magnetic pole and syntonizing coil; Described upward magnetic pole and lower magnetic pole are fixed between the described syntonizing coil, and the described part that goes up close air gap between magnetic pole and the lower magnetic pole attenuates, and last magnetic pole and lower magnetic pole adopt two kinds of combinations of materials to form; Described shell, last magnetic pole, lower magnetic pole and syntonizing coil constitute magnetic circuit together.
2. broadband YIG electrically tunable filter according to claim 1 is characterized in that, the described taper portion that goes up magnetic pole and the close air gap of lower magnetic pole adopts the 1J22 material to make.
3. broadband YIG electrically tunable filter according to claim 1 is characterized in that, described magnetic pole and the lower magnetic pole gone up adopts similar high saturated magnetic induction, material that coercive force is big to make near the taper portion of air gap.
4. according to claim 2 or 3 described broadband YIG electrically tunable filters, it is characterized in that the described other parts that go up magnetic pole and lower magnetic pole adopt the 1J50 material to make.
5. according to claim 2 or 3 described broadband YIG electrically tunable filters, it is characterized in that the described other parts that go up magnetic pole and lower magnetic pole adopt the permeability magnetic material that similar saturation induction density is lower, coercive force is little to make.
6. broadband YIG electrically tunable filter according to claim 1 is characterized in that, described casing adopts 1J50 to make.
7. broadband YIG electrically tunable filter according to claim 1 is characterized in that, described casing adopts the permeability magnetic material that similar saturation induction density is lower, coercive force is little to make.
8. broadband YIG electrically tunable filter according to claim 1 is characterized in that, described upward magnetic pole and the length of lower magnetic pole in described magnetic circuit account for fraction.
9. broadband YIG electrically tunable filter according to claim 1 is characterized in that, the length of described casing in described magnetic circuit accounts for the overwhelming majority.
10. broadband YIG electrically tunable filter according to claim 1 is characterized in that, the linear characteristic of described magnetic circuit and the described linear properties of going up magnetic pole, lower magnetic pole approach; The magnetic hysteresis feature of described magnetic circuit and the material of described casing approach.
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| CN2013102082961A CN103281049A (en) | 2013-05-30 | 2013-05-30 | Wide band YIG electrically tunable filter |
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| CN2013102082961A CN103281049A (en) | 2013-05-30 | 2013-05-30 | Wide band YIG electrically tunable filter |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460797A (en) * | 2014-10-22 | 2015-03-25 | 中国电子科技集团公司第四十一研究所 | YTF voltage-controlled current driving system of high-precision wide spectrum analyzer |
| CN104505211A (en) * | 2014-12-31 | 2015-04-08 | 北京北冶功能材料有限公司 | Composite structure magnetic circuit and preparation method thereof |
| CN105186075A (en) * | 2015-07-29 | 2015-12-23 | 中国电子科技集团公司第四十一研究所 | YIG electrically tunable filter magnetic circuit structure with high temperature stability |
| CN105186074A (en) * | 2015-07-29 | 2015-12-23 | 中国电子科技集团公司第四十一研究所 | YIG electrically tunable filter structure with position adjustable microwave resonant loop |
| CN105186090A (en) * | 2015-07-29 | 2015-12-23 | 中国电子科技集团公司第四十一研究所 | Resonance structure of YIG electrically tunable filter |
| CN107181029A (en) * | 2017-05-27 | 2017-09-19 | 中国电子科技集团公司第四十研究所 | A kind of wide-band double-tuned YIG-filter quickly tuned |
| CN108306083A (en) * | 2018-02-01 | 2018-07-20 | 西南应用磁学研究所 | YIG resonance circuit integrated morphologies |
| CN110137646A (en) * | 2019-06-19 | 2019-08-16 | 西南应用磁学研究所 | A kind of bandpass filter and modulator approach of centre frequency and the double tune of bandwidth |
| CN110165344A (en) * | 2019-05-28 | 2019-08-23 | 西南应用磁学研究所 | Gyromagnetic filter resonant circuit structure |
| CN111883891A (en) * | 2020-07-17 | 2020-11-03 | 中国电子科技集团公司第九研究所 | High-linearity magnetic circuit structure of YIG band-pass filter |
| CN111954363A (en) * | 2020-08-18 | 2020-11-17 | 兰州科近泰基新技术有限责任公司 | Method for manufacturing small-aperture high-gradient magnetic field quadrupole lens |
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| US5115209A (en) * | 1990-10-04 | 1992-05-19 | Wiltron Company | Multiple YIG oscillator |
| EP0591115A1 (en) * | 1992-10-02 | 1994-04-06 | Sivers Ima Ab | Yig component |
| CN101017922A (en) * | 2006-12-11 | 2007-08-15 | 电子科技大学 | Static magnetic surface wave band pass filter |
| CN101242021A (en) * | 2008-01-25 | 2008-08-13 | 清华大学 | Control method of electromagnetic response behavior of magnetic field negative magnetic permeability materials based on magnetic materials |
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2013
- 2013-05-30 CN CN2013102082961A patent/CN103281049A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5115209A (en) * | 1990-10-04 | 1992-05-19 | Wiltron Company | Multiple YIG oscillator |
| EP0591115A1 (en) * | 1992-10-02 | 1994-04-06 | Sivers Ima Ab | Yig component |
| CN101017922A (en) * | 2006-12-11 | 2007-08-15 | 电子科技大学 | Static magnetic surface wave band pass filter |
| CN101242021A (en) * | 2008-01-25 | 2008-08-13 | 清华大学 | Control method of electromagnetic response behavior of magnetic field negative magnetic permeability materials based on magnetic materials |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460797A (en) * | 2014-10-22 | 2015-03-25 | 中国电子科技集团公司第四十一研究所 | YTF voltage-controlled current driving system of high-precision wide spectrum analyzer |
| CN104505211A (en) * | 2014-12-31 | 2015-04-08 | 北京北冶功能材料有限公司 | Composite structure magnetic circuit and preparation method thereof |
| CN105186074B (en) * | 2015-07-29 | 2018-08-14 | 中国电子科技集团公司第四十一研究所 | A kind of adjustable YIG electrically tunable filters structure of microwave resonance circuit positions |
| CN105186075A (en) * | 2015-07-29 | 2015-12-23 | 中国电子科技集团公司第四十一研究所 | YIG electrically tunable filter magnetic circuit structure with high temperature stability |
| CN105186074A (en) * | 2015-07-29 | 2015-12-23 | 中国电子科技集团公司第四十一研究所 | YIG electrically tunable filter structure with position adjustable microwave resonant loop |
| CN105186090A (en) * | 2015-07-29 | 2015-12-23 | 中国电子科技集团公司第四十一研究所 | Resonance structure of YIG electrically tunable filter |
| CN107181029A (en) * | 2017-05-27 | 2017-09-19 | 中国电子科技集团公司第四十研究所 | A kind of wide-band double-tuned YIG-filter quickly tuned |
| CN108306083A (en) * | 2018-02-01 | 2018-07-20 | 西南应用磁学研究所 | YIG resonance circuit integrated morphologies |
| CN108306083B (en) * | 2018-02-01 | 2019-11-29 | 西南应用磁学研究所 | YIG resonance circuit integrated morphology |
| CN110165344A (en) * | 2019-05-28 | 2019-08-23 | 西南应用磁学研究所 | Gyromagnetic filter resonant circuit structure |
| CN110137646A (en) * | 2019-06-19 | 2019-08-16 | 西南应用磁学研究所 | A kind of bandpass filter and modulator approach of centre frequency and the double tune of bandwidth |
| CN110137646B (en) * | 2019-06-19 | 2024-01-16 | 西南应用磁学研究所 | Band-pass filter with double-modulation center frequency and bandwidth and modulation method |
| CN111883891A (en) * | 2020-07-17 | 2020-11-03 | 中国电子科技集团公司第九研究所 | High-linearity magnetic circuit structure of YIG band-pass filter |
| CN111954363A (en) * | 2020-08-18 | 2020-11-17 | 兰州科近泰基新技术有限责任公司 | Method for manufacturing small-aperture high-gradient magnetic field quadrupole lens |
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Application publication date: 20130904 |